Ostrach (disambiguation)
Ostrach is a geographical name:
- Ostrach , municipality in the district of Sigmaringen, Baden-Württemberg, best known for the battle of Ostrach in 1799
- Ostrach (Danube) , right tributary of the Danube near Hundersingen, Herbertingen community, Sigmaringen district, Baden-Württemberg
- Ostrach (Iller) , right tributary of the Iller near Sonthofen, Oberallgäu district, Bavaria